package com.sixiaolong.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import java.sql.SQLIntegrityConstraintViolationException;

//全局异常处理器  拦截有RestController的模块
@ControllerAdvice(annotations = {RestController.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
//    异常处理方法
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2]+"已存在";
            return R.error(msg);
        }
        return R.error("未知错误");
    }


//    自定义异常  返回给页面信息
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }
}
